Characteristics of the SSI Module BMX EAE 0300
Original instructions
About us
Ruggedized Version
The BMX EAE 0300H (hardened) equipment is the ruggedized version of the BMX EAE 0300 (standard) equipment. It can be used at extended temperatures and in harsh chemical environments.
For more information, refer to chapter Installation in More Severe Environments.
Altitude Operating Conditions
The characteristics in the table below apply to the modules BMX EAE 0300 and BMX EAE 0300H for use at altitude up to 2000 m (6560 ft). When the modules operate above 2000 m (6560 ft), apply additional derating.
For detailed information, refer to chapter Operating and Storage Conditions.
General Characteristics
This table presents the general characteristics of the SSI module BMX EAE 0300 and BMX EAE 0300H:
SSI Channels
Maximum SSI Baud Rate
100k, 200k, 500k, 1M
SSI Channel Number
3
Bit Width
8 to 31 bits
Refresh interval
= 1 ms
Regular I/O Channels
Number of Digital Inputs
Two 24 Vdc Type 3 inputs per module
Number of Digital Outputs
One 24 Vdc output per channel
Hot Swapping Supported
Yes
Encoder Compliance
Absolute encoder 24 V model with standard SSI interface (tolerance: 19.2-30 Vdc)
Power Supply to Encoder
Voltage: 24 Vdc (Supplied by the field power)
Current: < 200 mA per channel (for 24 Vdc)
Power Distribution To Encoder
Yes, short circuit limited (700 mA total)
Back Plane Power Consumption
+ 3.3 Vdc
Typical: 150 mA
Maximum: 250 mA
+ 24 Vdc
Not used
Dielectric Strength
Field To Bus
1400 Vdc for 1 minimum
Field Power
Voltage
19.2 to 30 Vdc (24 Vdc typical)
Over-voltage protected up to 45 Vdc.
Current
It depends on the encoder(s) and the load of reflex output consumption.
For module operating: 30 mA.
Operating temperature
BMX EAE 0300
0...60 ºC (32...140 ºF)
BMX EAE 0300H
-25...70 ºC (-13...158 ºF)
NOTE: The encoder is required to have at least 5 mA output current to activate the DATA input of the SSI module.
WARNING
EQUIPMENT DAMAGE
Do not allow the supplied voltage to exceed the maximum allowed voltage of the encoder when the module BMX EAE 0300 or BMX EAE 0300H is used to provide power to encoder.
Failure to follow these instructions can result in death, serious injury, or equipment damage.